Ah ha, Walmart's WWB is a little hotter! So now you know how low you can go.
9mm 115gr FMJ:
Winchester White, Muzzle Velocity: 1190 fps Muzzle Energy: 362 ftlbs
Federal Champion, Muzzle Velocity: 1125 fps Muzzle Energy: 323 ftlbs
Of course after 1000 rounds your Glock might loosen up enough to run the Federal too.
It's a little harder comparing the Federal and Winchester 40S&W at Walmart since the bullet weights are different. Both of these work great in my Glock 22 and 23.
40S&W Winchester USA40SWVP FMJ, 165gr, Muzzle Velocity: 1060 fps Muzzle Energy: 412 ftlbs
40S&W Federal WM5223 FMJ, 180gr, Muzzle Velocity: 985 fps Muzzle Energy: 388 ftlbs
The biggest issue with assembling an AR isn't so much getting the parts together right - it's getting the right parts together.
US Army 1966-69, VFW Life Member, Retired Geek
Last edited by Quentin; 07-28-2011 at 11:23 PM.